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https://issues.apache.org/jira/browse/NIFI-5998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17926937#comment-17926937
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Ronald Mascaro commented on NIFI-5998:
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I have need of this processor as well.
Some suggestions for properties in addition to those listed in the description:
* Null Value Representation: empty string or the string 'null'
add "ignore" - treat empty/null fields as a non-match, don't include them in
the results
* Max number of results - integer
after the limit is reached no more results from additional records will be
returned.
Since multiple attribute/recordPath properties may be defined, the max limit
should applied independently to each. That is, grab the first x values found
for each that are not empty or null.
Note that for my particular use case, I would be evaluating a CSV field and
writing the value to a FF attribute, and only want to return the value for the
first record.
> EvaluateRecordPath Processor
> ----------------------------
>
> Key: NIFI-5998
> URL: https://issues.apache.org/jira/browse/NIFI-5998
> Project: Apache NiFi
> Issue Type: New Feature
> Affects Versions: 1.8.0
> Reporter: Nimrod Avni
> Priority: Minor
>
> We should have a EvaluateRecrodPath processor, which accepts a record reader
> as a property.
> similarly to the EvaluateJsonPath and EvaluateXpath we should have some of
> their properties like:
> * Destination: flowfile-content or flowfile-attributes
> * Return type: return only the value of the record path or the entire
> structure (xml,json,csv), should have auto-detect,structure,value
> * Path not found behavior: ignore,warn or fail
> * Null Value Representation: empty string or the string 'null'
>
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